1 /*
2 *************************************************************************
3 * Ralink Tech Inc.
4 * 5F., No.36, Taiyuan St., Jhubei City,
5 * Hsinchu County 302,
6 * Taiwan, R.O.C.
7 *
8 * (c) Copyright 2002-2007, Ralink Technology, Inc.
9 *
10 * This program is free software; you can redistribute it and/or modify *
11 * it under the terms of the GNU General Public License as published by *
12 * the Free Software Foundation; either version 2 of the License, or *
13 * (at your option) any later version. *
14 * *
15 * This program is distributed in the hope that it will be useful, *
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
18 * GNU General Public License for more details. *
19 * *
20 * You should have received a copy of the GNU General Public License *
21 * along with this program; if not, write to the *
22 * Free Software Foundation, Inc., *
23 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
24 * *
25 *************************************************************************
26
27 Module Name:
28 rt_rf.c
29
30 Abstract:
31 Ralink Wireless driver RF related functions
32
33 Revision History:
34 Who When What
35 -------- ---------- ----------------------------------------------
36 */
37
38 #include "../rt_config.h"
39
40 #ifdef RTMP_RF_RW_SUPPORT
41 /*
42 ========================================================================
43
44 Routine Description: Write RT30xx RF register through MAC
45
46 Arguments:
47
48 Return Value:
49
50 IRQL =
51
52 Note:
53
54 ========================================================================
55 */
RT30xxWriteRFRegister(struct rt_rtmp_adapter * pAd,u8 regID,u8 value)56 int RT30xxWriteRFRegister(struct rt_rtmp_adapter *pAd,
57 u8 regID, u8 value)
58 {
59 RF_CSR_CFG_STRUC rfcsr;
60 u32 i = 0;
61
62 do {
63 RTMP_IO_READ32(pAd, RF_CSR_CFG, &rfcsr.word);
64
65 if (!rfcsr.field.RF_CSR_KICK)
66 break;
67 i++;
68 }
69 while ((i < RETRY_LIMIT)
70 && (!RTMP_TEST_FLAG(pAd, fRTMP_ADAPTER_NIC_NOT_EXIST)));
71
72 if ((i == RETRY_LIMIT)
73 || (RTMP_TEST_FLAG(pAd, fRTMP_ADAPTER_NIC_NOT_EXIST))) {
74 DBGPRINT_RAW(RT_DEBUG_ERROR,
75 ("Retry count exhausted or device removed!\n"));
76 return STATUS_UNSUCCESSFUL;
77 }
78
79 rfcsr.field.RF_CSR_WR = 1;
80 rfcsr.field.RF_CSR_KICK = 1;
81 rfcsr.field.TESTCSR_RFACC_REGNUM = regID;
82 rfcsr.field.RF_CSR_DATA = value;
83
84 RTMP_IO_WRITE32(pAd, RF_CSR_CFG, rfcsr.word);
85
86 return NDIS_STATUS_SUCCESS;
87 }
88
89 /*
90 ========================================================================
91
92 Routine Description: Read RT30xx RF register through MAC
93
94 Arguments:
95
96 Return Value:
97
98 IRQL =
99
100 Note:
101
102 ========================================================================
103 */
RT30xxReadRFRegister(struct rt_rtmp_adapter * pAd,u8 regID,u8 * pValue)104 int RT30xxReadRFRegister(struct rt_rtmp_adapter *pAd,
105 u8 regID, u8 *pValue)
106 {
107 RF_CSR_CFG_STRUC rfcsr;
108 u32 i = 0, k = 0;
109
110 for (i = 0; i < MAX_BUSY_COUNT; i++) {
111 RTMP_IO_READ32(pAd, RF_CSR_CFG, &rfcsr.word);
112
113 if (rfcsr.field.RF_CSR_KICK == BUSY) {
114 continue;
115 }
116 rfcsr.word = 0;
117 rfcsr.field.RF_CSR_WR = 0;
118 rfcsr.field.RF_CSR_KICK = 1;
119 rfcsr.field.TESTCSR_RFACC_REGNUM = regID;
120 RTMP_IO_WRITE32(pAd, RF_CSR_CFG, rfcsr.word);
121 for (k = 0; k < MAX_BUSY_COUNT; k++) {
122 RTMP_IO_READ32(pAd, RF_CSR_CFG, &rfcsr.word);
123
124 if (rfcsr.field.RF_CSR_KICK == IDLE)
125 break;
126 }
127 if ((rfcsr.field.RF_CSR_KICK == IDLE) &&
128 (rfcsr.field.TESTCSR_RFACC_REGNUM == regID)) {
129 *pValue = (u8)rfcsr.field.RF_CSR_DATA;
130 break;
131 }
132 }
133 if (rfcsr.field.RF_CSR_KICK == BUSY) {
134 DBGPRINT_ERR("RF read R%d=0x%x fail, i[%d], k[%d]\n", regID, rfcsr.word, i, k);
135 return STATUS_UNSUCCESSFUL;
136 }
137
138 return STATUS_SUCCESS;
139 }
140
NICInitRFRegisters(struct rt_rtmp_adapter * pAd)141 void NICInitRFRegisters(struct rt_rtmp_adapter *pAd)
142 {
143 if (pAd->chipOps.AsicRfInit)
144 pAd->chipOps.AsicRfInit(pAd);
145 }
146
RtmpChipOpsRFHook(struct rt_rtmp_adapter * pAd)147 void RtmpChipOpsRFHook(struct rt_rtmp_adapter *pAd)
148 {
149 struct rt_rtmp_chip_op *pChipOps = &pAd->chipOps;
150
151 pChipOps->pRFRegTable = NULL;
152 pChipOps->AsicRfInit = NULL;
153 pChipOps->AsicRfTurnOn = NULL;
154 pChipOps->AsicRfTurnOff = NULL;
155 pChipOps->AsicReverseRfFromSleepMode = NULL;
156 pChipOps->AsicHaltAction = NULL;
157 /* We depends on RfICType and MACVersion to assign the corresponding operation callbacks. */
158
159 #ifdef RT30xx
160 if (IS_RT30xx(pAd)) {
161 pChipOps->pRFRegTable = RT30xx_RFRegTable;
162 pChipOps->AsicHaltAction = RT30xxHaltAction;
163 #ifdef RT3070
164 if ((IS_RT3070(pAd) || IS_RT3071(pAd))
165 && (pAd->infType == RTMP_DEV_INF_USB)) {
166 pChipOps->AsicRfInit = NICInitRT3070RFRegisters;
167 if (IS_RT3071(pAd)) {
168 pChipOps->AsicRfTurnOff =
169 RT30xxLoadRFSleepModeSetup;
170 pChipOps->AsicReverseRfFromSleepMode =
171 RT30xxReverseRFSleepModeSetup;
172 }
173 }
174 #endif /* RT3070 // */
175 #ifdef RT3090
176 if (IS_RT3090(pAd) && (pAd->infType == RTMP_DEV_INF_PCI)) {
177 pChipOps->AsicRfTurnOff = RT30xxLoadRFSleepModeSetup;
178 pChipOps->AsicRfInit = NICInitRT3090RFRegisters;
179 pChipOps->AsicReverseRfFromSleepMode =
180 RT30xxReverseRFSleepModeSetup;
181 }
182 #endif /* RT3090 // */
183 }
184 #endif /* RT30xx // */
185 }
186
187 #endif /* RTMP_RF_RW_SUPPORT // */
188